Πλοήγηση ανά Συγγραφέα "Maniatis, A. N."
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Evaluation of an anti-PBP 2a slide latex agglutination test in coagulase-negative staphylococci isolated in Greek hospitals
Petinaki, E.; Miriagou, V.; Tzouvelekis, L. S.; Hatzi, F.; Legakis, N. J.; Maniatis, A. N. (2002)Oxacillin resistance was examined in 258 coagulase-negative staphylococci from Greek hospitals. mecA DNA was detected in 168 isolates, which were also resistant to oxacillin by agar dilution and disk diffusion, according ... -
First report of a linezolid-resistant vancomycin-resistant Enterococcus faecium strain in Greece
Bersos, Z.; Maniati, M.; Kontos, F.; Petinaki, E.; Maniatis, A. N. (2004) -
Heteroresistance to carbapenems in Acinetobacter baumannii
Pournaras, S.; Ikonomidis, A.; Markogiannakis, A.; Maniatis, A. N.; Tsakris, A. (2005) -
Hidden VIM-1 metallo-beta-lactamase phenotypes among Acinetobacter baumannii clinical isolates
Ikonornidis, A.; Ntokou, E.; Maniatis, A. N.; Tsakris, A.; Pournaras, S. (2008)A total of 87 Acinetobacter baumannii nonrepetitive consecutive clinical isolates were tested for the presence of metallo-beta-lactamases (MBLs). Results of phenotypic assays (MBL Etest, imipenem/imipenem-EDTA combined-disk ... -
A highly carbapenem-resistant Pseudomonas aeruginosa isolate with a novel bla(VIM-4)/bla(P1b) integron overexpresses two efflux pumps and lacks OprD
Maniati, M.; Ikonomidis, A.; Mantzana, P.; Daponte, A.; Maniatis, A. N.; Pournaras, S. (2007)Objectives: A Pseudomonas aeruginosa clinical isolate that exhibited high-level carbapenem resistance and produced metallo-beta-lactamase (MBL) was recovered from a Greek patient. This study was conducted to determine the ... -
In Vitro and In Vivo Evaluations of Oxacillin Efficiency against mecA-Positive Oxacillin-Susceptible Staphylococcus aureus
Ikonomidis, A.; Michail, G.; Vasdeki, A.; Labrou, M.; Karavasilis, V.; Stathopoulos, C.; Maniatis, A. N.; Pournaras, S. (2008)Community-type Staphylococcus aureus strains that are positive for mecA and PBP2a but appear phenotypically susceptible to oxacillin are increasingly reported worldwide. Four S. aureus clinical isolates carrying the mecA ... -
Increased serum levels of YKL-40 in patients with inflammatory bowel disease
Koutroubakis, I. E.; Petinaki, E.; Dimoulios, P.; Vardas, E.; Roussomoustakaki, M.; Maniatis, A. N.; Kouroumalis, E. A. (2003)Background and aims: Initiation of a fibrotic process has been suggested as part of the intestinal response to chronic inflammation in inflammatory bowel disease. YKL-40 has been proposed as a new serum marker of fibrosis. ... -
Increasing prevalence of high-level gentamicin resistance among enterococci isolated in Greece
Tsakris, A.; Pournaras, S.; Maniatis, A. N.; Douboyas, J.; Antoniadis, A. (2001)High-level gentamicin-resistant enterococci (HLGRE) (MIC >512 mug/ml) were frequently recovered in the AHEPA University Hospital, Thessaloniki, Greece, during a 15-month period (67/158, 42.4%). PCR testing showed that ... -
Low genetic diversity of the intrinsic OXA-51-like class D carbapenemases among Acinetobacter baumannii clinical isolates in Greece
Ikonomidis, A.; Pournaras, S.; Markogiannakis, A.; Maniatis, A. N.; Manolis, E. N.; Tsakris, A. (2007)This study examined the geographical distribution and diversity of the intrinsic OXA-51-like class D carbapenemases among Acinetobacter baumannii clones recovered in three major Greek regions from 2000 to 2005. The bla(OXA-66) ... -
Methicillin-resistant Staphylococcus aureus in the hospitals of Central Greece
Petinaki, E.; Miriagou, V.; Tzouvelekis, L. S.; Pournaras, S.; Hatzi, F.; Kontos, F.; Maniati, M.; Maniatis, A. N. (2001)A total of 250 consecutive Staphylococcus aureus clinical isolates were collected during the period 1999-2000 from the five major hospitals of the district of Thessaly (Central Greece). Thirty seven (14.8%) of the isolates ... -
Molecular cloning and biochemical characterization of VIM-12, a novel hybrid VIM-1/VIM-2 metallo-beta-lactamase from a Klebsiella pneumoniae clinical isolate, reveal atypical substrate specificity
Kontou, M.; Pournaras, S.; Kristo, I.; Ikonomidis, A.; Maniatis, A. N.; Stathopoulos, C. (2007)Metallo-beta-lactamases (MBLs) are considered an emerging family of Zn2+-dependent enzymes that significantly contribute to the resistance of many nosocomial pathogens against beta-lactam antimicrobials. Since these ... -
Molecular cloning and biochemical characterization of VIM-12, a novel hybrid VIM-1/VIM-2 metallo-beta-lactamase from a Klebsiella pneumoniae clinical isolate, reveals atypical substrate specificity
Kontou, M.; Pournaras, S.; Kristo, I.; Ikonomidis, A.; Maniatis, A. N.; Stathopoulos, C. (2008) -
Multiresistant Acinetobacter baumannii isolates in intensive care units in Greece
Maniatis, A. N.; Pournaras, S.; Orkopoulou, S.; Tassios, P. T.; Legakis, N. J. (2003)One hundred and twenty-one clinical isolates of Acinetobacter baumannii recovered from the intensive care units (ICUs) of nine tertiary-care hospitals in Athens, Greece were studied in order to determine whether the ... -
Nosocomial spread of an unusual methicillin-resistant Staphylococcus aureus clone that is sensitive to all non-beta-lactam antibiotics, including tobramycin
Pournaras, S.; Slavakis, A.; Polyzou, A.; Sofianou, D.; Maniatis, A. N.; Tsakris, A. (2001)Between January and December 1999, in Hippokration General Hospital, Thessaloniki, Greece, a large proportion of the methicillin-resistant Staphylococcus aureus isolates (34.4%) exhibited susceptibility to virtually all ... -
Novel variant (bla(VlM-4)) of the metallo-beta-lactamase gene bla(VIM-1) in a clinical strain of Pseudomonas aeruginosa
Pournaras, S.; Tsakris, A.; Maniati, M.; Tzouvelekis, L. S.; Maniatis, A. N. (2002)A Pseudomonas aeruginosa isolate highly resistant to carbapenems was collected from a patient with post-surgical cerebrospinal infection in Greece. The isolate carried a class I integron that contained as a sole cassette ... -
Outbreak of infections caused by Enterobacter cloacae producing the integron-associated beta-lactamase IBC-1 in a neonatal intensive care unit of a Greek hospital
Kartali, G.; Tzelepi, E.; Pournaras, S.; Kontopoulou, C.; Kontos, F.; Sofianou, D.; Maniatis, A. N.; Tsakris, A. (2002)Nineteen of 27 ceftazidime-resistant Enterobacter cloacae isolates from a neonatal intensive care unit in Thessaloniki, Greece, had genes coding for the novel extended-spectrum beta-lactamase IBC-1; 18 of those 19 harbored ... -
Outbreak of multiple clones of imipenem-resistant Acinetobacter baumannii isolates expressing OXA-58 carbapenemase in an intensive care unit
Pournaras, S.; Markogiannakis, A.; Ikonomidis, A.; Kondyli, L.; Bethimouti, K.; Maniatis, A. N.; Legakis, N. J.; Tsakris, A. (2006)Objectives: To investigate the resistance mechanisms and the genetic relationship of imipenem-resistant Acinetobacter baumannii isolates recovered in the intensive care unit (ICU) of a tertiary care hospital. Methods: ... -
Outbreaks in distinct regions due to a single Klebsiella pneumoniae clone carrying a bla(VIM-1) metallo-beta-lactamase gene
Ikonomidis, A.; Tokatlidou, D.; Kristo, I.; Sofianou, D.; Tsakris, A.; Mantzana, P.; Pournaras, S.; Maniatis, A. N. (2005)From December 2004 to March 2005, 27 Klebsiella pneumoniae clinical isolates that were positive by the imipenem-EDTA double-disk synergy test and that exhibited a single macrorestriction pattern were recovered in two ... -
Persistence of a clone of glycopeptide-resistant Enterococcus faecalis among patients in an intensive care unit of a Greek hospital
Pournaras, S.; Malamou-Lada, H.; Maniati, M.; Mylona-Petropoulou, D.; Vagiakou-Voudris, H.; Tsakris, A.; Maniatis, A. N. (2004)Objectives: To investigate an outbreak of glycopeptide-resistant Enterococcus faecalis (GREF) in the intensive care unit (ICU) of 'G. Gennimatas' General Hospital, Athens, Greece. Materials and methods: Between August 2000 ... -
Piperacillin/tazobactam-heteroresistant Pseudomonas aeruginosa from urinary infection, successfully treated by piperacillin/tazobactam
Pournaras, S.; Ikonomidis, A.; Neou, E.; Kantzanou, M.; Maniatis, A. N.; Tsakris, A. (2008)